Search a number
-
+
5129161 = 23223007
BaseRepresentation
bin10011100100001111001001
3100122120212221
4103210033021
52303113121
6301534041
761411552
oct23441711
910576787
105129161
112993684
121874321
1310a780b
14977329
156b4b41
hex4e43c9

5129161 has 4 divisors (see below), whose sum is σ = 5352192. Its totient is φ = 4906132.

The previous prime is 5129153. The next prime is 5129171. The reversal of 5129161 is 1619215.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5129161 - 23 = 5129153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5129101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111481 + ... + 111526.

It is an arithmetic number, because the mean of its divisors is an integer number (1338048).

Almost surely, 25129161 is an apocalyptic number.

It is an amenable number.

5129161 is a deficient number, since it is larger than the sum of its proper divisors (223031).

5129161 is a wasteful number, since it uses less digits than its factorization.

5129161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223030.

The product of its digits is 540, while the sum is 25.

The square root of 5129161 is about 2264.7651092332. The cubic root of 5129161 is about 172.4575096634.

It can be divided in two parts, 51291 and 61, that multiplied together give a triangular number (3128751 = T2501).

The spelling of 5129161 in words is "five million, one hundred twenty-nine thousand, one hundred sixty-one".

Divisors: 1 23 223007 5129161